Dinosaurs - Conservation Status

december accessed york natural

The dinosaurs became extinct 65 million years ago. Their deaths likely resulted from a huge asteroid, a rock from outer space, that slammed into the Earth, probably near the Yucatan Peninsula of Mexico. The impact from the 4 to 9 mile-wide (6 to 15 kilometer) asteroid sent up a thick plume of dust and caused a chain reaction that resulted in a severe change in the planet's climate. For years afterward, the sun was unable to penetrate the dark curtain of dust. Temperatures around the world began to drop. Without sunlight, plants died, and with fewer plants to eat, many herbivores also perished. With fewer and fewer herbivores to eat, the carnivores may have begun to eat each other, until they also disappeared. Scientists believe that one group of dinosaurs survived the great extinction, however. These were the dromaeosaurids that eventually evolved into the birds. For this reason, some books refer to birds as modern-day dinosaurs.

Citing this material

Please include a link to this page if you have found this material useful for research or writing a related article. Content on this website is from high-quality, licensed material originally published in print form. You can always be sure you're reading unbiased, factual, and accurate information.

Highlight the text below, right-click, and select “copy”. Paste the link into your website, email, or any other HTML document.

User Comments

Quickbooks Support Number @ http://www.quickbooks.intuit-techsupport.com/Quickbooks Support Phone Number @ http://www.quickbooks.support-phonenumber.com/Quicken Support Phone Number @ http://www.quicken.support-phonenumber.com/Quicken Support Number @ http://www.quicken.intuit-techsupport.com/Sage Support Phone Number @ http://www.sage.support-phonenumber.com/

Thanks for More information top 3 company provide moving services & local shifting serviceshttp://3th.co.in/packers-and-movers-delhi/http://3th.co.in/packers-and-movers-noida/http://3th.co.in/packers-and-movers-ghaziabad/http://3th.co.in/packers-and-movers-faridabad/